写一封复古风格的英语书信，你可以遵循以下步骤和格式：

信头（Header）：

发信人的姓名（单位名称）

地址

日期

通常写在信纸的右上角。

称呼（Salutation）：

根据收信人的身份和关系选择合适的称呼，如Dear Mr./Ms. [Last Name]，Dear [First Name]，或者使用更正式的称呼如Dear Sir/Madam。

正文（Body）：

第一段：简短地问候并表达收到来信的喜悦。

中间段落：详细阐述你想要传达的信息或主题。

最后一段：总结信件内容，提出期望的下一步行动或表示感谢。

结束语（Closing）：

使用适当的结束语，如Best regards, Warm wishes, Sincerely等。

签名（Signature）：

在结束语下方留几行空白后签上自己的名字。

```

[Your Name]

[Your Address]

[City, State, Zip Code]

[Date]

[Recipient's Name]

[Recipient's Address]

[City, State, Zip Code]

Dear [Recipient's Name],

I trust this missive finds you in good spirits. It has been quite some time since we last corresponded, and I trust that all is well with you.

It brings me great pleasure to receive your letter of [date of receipt]. Your words of encouragement and kind wishes have been a source of great comfort and motivation. I am deeply grateful for your ongoing support and friendship.

In response to your inquiries, I would like to inform you of [subject of your letter]. [Provide details and share any relevant information or updates]. I assure you that [mention any actions you have taken or will take in response to the recipient's concerns].

I eagerly anticipate hearing from you soon and hope to have the opportunity to meet with you in person sometime soon. Please do not hesitate to reach out should you need any assistance or have further questions.

Wishing you all the best in all your endeavors.

Yours sincerely,

[Your Signature （if sending a hard copy）]

[Your Printed Name]

```

请注意，复古书信通常使用更正式和传统的语言风格，避免使用缩略语和现代表达。确保你的语法和拼写准确无误，以体现书信的正式和尊重。